题目内容
2.It's time that you ____ with the relief work in the flood-stricken area after the awful typhoon.( )A. | must help | B. | can help | C. | helped | D. | have helped |
分析 在可怕的台风后,你们是时候帮助洪水泛滥地区的救援工作了.
解答 答案是C.本题考查句型"It's time that".该句型中从句动词往往用过去时,也可以用"should+动词原形";所以答案选C.注意,注意区分:如果time前有序数词,则是句型It's the first/second…time that",这时从句中往往用现在完成时,如果is改成was,从句中用过去完成时.
点评 在掌握虚拟语气的规则的基础上,判断题干属于什么类型的虚拟,然后根据语境,选用恰当的动词形式表达虚拟.
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